Greek PM Tsipras sets up another EU clash, refuses bailout extension

By Deepa Babington and Renee Maltezou ATHENS (Reuters) - Greece's new leftist prime minister, Alexis Tsipras, said on Sunday he would not accept an extension to Greece's current bailout, setting up a clash with EU leaders - who want him to do just that - at a summit on Thursday. "The bailout failed," he said. "The new government is not justified in asking for an extension ... because it cannot ask for an extension of mistakes." Tsipras's speech will have been c